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lead screw

American

[leed] / lid /

noun

(on a lathe) a rotating horizontal screw for moving the tool carriage along the work at a constant rate.

lead screw British

/ liːd /

noun

a threaded rod that drives the tool carriage in a lathe when screw cutting, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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lead screw

Its lead screw, liberated from the child’s spinning top that inspired its designer, still works, sending the basket merrily whirring in its plastic bowl.

From Slate ● Jun. 20, 2022

WHY: The incline lead screw can shear off, causing the foot pedals to drop unexpectedly, resulting in a fall hazard to the user.

From Seattle Times ● Mar. 30, 2018

When the cam lever is raised it brings the slide outward about half an inch, and the tool rest e comes out with it and at the same time the nut leaves the lead screw.

From Modern Machine-Shop Practice, Volumes I and II by Joshua Rose

The lead screw if long should be supported, to prevent its sagging of its own weight.

From Modern Machine-Shop Practice, Volumes I and II by Joshua Rose

When the screw for traversing a lathe carriage is used for plain feeding, it is termed the feed screw, but when it is used to cut threads it is termed the lead screw.

From Modern Machine-Shop Practice, Volumes I and II by Joshua Rose

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023